5．删除 点击

，弹出如下窗口：

当输入的学号不存在时，会弹出提示：

当删除成功时，弹出窗口：

6．退出 点击

，退出学籍管理系统。

5 主要程序代码及说明

1.菜单部分代码：

package XSXJGL;

import java.awt.Container; import java.awt.LayoutManager; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.*;

import javax.swing.JButton; import javax.swing.JFrame;

import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; public class Menu {

JFrame jf;

JButton j1,j2, j3, j4, j5,j6;

public static void main(String args[]){ Menu m =new Menu(); m.go(); }

public void go(){

jf=new JFrame(\学生学籍管理系统\ jf.setBounds(200, 200, 300, 200); Container cp=jf.getContentPane();

cp.setLayout(new FlowLayout(FlowLayout.LEADING,20,20)); j1=new JButton(\添加学生信息\ j2=new JButton(\修改学生信息\ j3=new JButton(\查询学生信息\ j4=new JButton(\删除学生信息\ j5=new JButton(\显示学生信息\ j6=new JButton(\退出管理系统\ cp.add(j1); cp.add(j2); cp.add(j3); cp.add(j4); cp.add(j5);

cp.add(j6);

j1.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){ new Add(); } });

j2.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e){ Modify modify=new Modify(); } });

j3.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e){ Search search=new Search(); } });

j4.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e){ Delete delete=new Delete(); } });

j5.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){ Display display=new Display(); } });

j6.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent ae){ System.exit(0); } });

jf.setVisible(true); } }

2.登录部分代码：

package XSXJGL;

import java.awt.Dimension; import java.awt.Toolkit;

import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane;